Author/Authors :
Song، نويسنده , , K.K. and Pauly، نويسنده , , S. and Zhang، نويسنده , , Y. and Scudino، نويسنده , , S. and Gargarella، نويسنده , , P. and Surreddi، نويسنده , , K.B. and Kühn، نويسنده , , U. and Eckert، نويسنده , , J.، نويسنده ,
Abstract :
Significant tensile plasticity up to 0.7 ± 0.1% together with work-hardening and larger fracture strength was obtained in Cu47.5Zr47.5Al5 bulk metallic glass (BMG) upon cold rolling with only 2.9 ± 0.3% thickness reduction. The good deformability could be attributed to the multiple pre-existing shear bands and structural inhomogeneity induced by rolling. The distributions of shear bands upon rolling can be predicted by a simplified rolling model. The underlying mechanism for the tensile plasticity was further discussed in the frame of potential energy landscape theory (PEL).
Keywords :
A. Ternary alloy systems , B. Glasses , metallic , B. Mechanical properties at ambient temperature , C. Rolling
